Project task:
The customer requested a calculation of thermal equipment to replace the existing electric boiler, to significantly reduce utility costs. New house, well insulated area 120 м². But the boiler room is very small, so the task was to fit it in a very small space.
Answer:
So, how the climate in the Kyiv region softened in winter, however, temperatures as low as -20°C remain, so you need equipment, which adapts well to sudden temperature fluctuations. It was decided to install a new generation Raymer RAY-13DS2-EVI inverter heat pump, which has an improved fan and compressor, having reduced noise during operation, and work perfectly with underfloor heating systems.
This heat pump has high energy efficiency indicators COP 4,9, which means, what's on 1 kW of consumed energy the Raymer RAY-13DS2-EVI heat pump produces 4,9 kW of heat.
I.e, By installing a heat pump instead of an electric boiler, the customer will be able to spend 4 times less money for heating.
It was decided to leave the electric boiler, as a backup power source, when the heat pump is stopped for maintenance.
Scope of work completed
1. Outdoor unit installation
The outdoor unit of the heat pump is mounted on a self-welded stand and anti-vibration feet, to reduce the influence of vibration from the concrete surface during compressor and fan operation.
The freon line is laid through the wall and insulated with rubber tape to protect against external damage.
It was important to install the outdoor unit outdoors, so that the outdoor unit has access to air, which would provide sufficient ventilation and would not interfere with the movement of air through the heat exchanger.
2. Installation of the hydraulic module
After installing the outdoor unit, an important step is installing the hydraulic module.
In this case, it was installed as close as possible to the electric boiler, due to limited space in the boiler room.
It was important to install the block on strong brackets, to ensure the stability of the design and installation of the entire system.
Freon pipes are connected and insulated taking into account all parameters to maintain the integrity of the pipe.
3. Connecting a buffer tank
Buffer tank provides heat storage, reduces the frequency of pump activation and helps maintain a stable temperature in the system.
For this system, it was decided to install a Raymer IMP buffer tank 60, which will be quite enough to accumulate heat and supply it to radiators.
So, as there is very little space in the boiler room, It was decided to install the buffer tank above the window like this, to make it convenient to install coolant supply connections.
The storage tank acts as a coolant storage tank and, in the event of a heat pump shutdown, can retain heat for several more hours..
4. Controller setup
Controller receives data from various sensors, installed on the system. Sensors measure inlet and outlet water temperatures, return and exhaust gas temperature, ambient temperature, as well as the temperature of the evaporator and condenser coils. Pressure indicators are also monitored using high and low pressure sensors.
Based on the data he regulates the operation of heat pump components to achieve optimal efficiency and maintain set parameters. This includes water and air temperature control, as well as system pressure.
System monitors the operation of the heat pump for possible emergency situations. If such situations arise, For example, overheating or exceeding permissible pressure, the controller can automatically turn off individual components to prevent damage.
Controller equipped with memory function, which allows you to save settings and parameters even in the event of a power outage. Besides, it supports network connection via Tuya WIFI, which allows remote control and monitoring of the system.
Controller controls the operation of the water pump, fan, electric heaters and valves. Depending on operating mode (heating, cooling or hot water preparation), it automatically turns these components on or off, ensuring optimal system performance.
Advantages of the new generation Raymer RAY-13DS2-EVI heat pump
The Raymer RAY-13DS2-EVI heat pump has the power 13 kW, making it ideal for efficiently heating rooms up to 120 sq.m. It provides significant energy savings of up to 80% compared to traditional heating systems, which reduces heating costs.
Using green energy, this heat pump helps reduce CO2 emissions and has a positive impact on the environment.
Inverter compressor and Enhanced Vapor Injection technology (EVI)
Inverter technology allows you to adjust the pump power depending on demand, providing stable and efficient heating of the room. Thanks Enhanced Vapor Injection technology (EVI), The heat pump can operate at low temperatures down to -30 °C, which expands the possibilities of use in different climatic conditions.
New black design for better heat absorption
New design in black, as a result of the latest developments and research in the field of heating equipment for better absorption of heat from the environment, makes the Raymer RAY-13DS2-EVI heat pump the best choice among other heating systems.
Black surfaces are less susceptible to visible dirt, dust and scratches compared to white or light-colored surfaces. This reduces the need for frequent cleaning and maintenance of the device, which is user friendly.
Black has better heat absorption ability, which can be useful for outdoor units of heat pumps in the cold season. This helps prevent icing and improves operating efficiency..
Remote control
Built-in Wi-Fi module allows you to control the heat pump from a distance. Wherever you are, you can turn on/off the heat pump, and also track its performance with access to the Internet.
The convenience of this function is that, that even being on a trip, you can turn on and set the heating or cooling operation in advance, and enjoy a comfortable temperature in the house upon arrival, without waiting for the system to work at full capacity.
